Lamp.



No. 642,528. Patented Ian. 30, I900.

F. RHIND.

LAMP.

(Application filed Sept. 2, 1899. (No Moder.) 2 Sheep-Sheet l.

(WWW/a! ATTORNEY.

Patented Ian. 30, I900. F. BHIND.

L A I P (Application filed Sept. 2, 1899.)

(lo Model.) 2 Sheets-$heet 2.

WITNESSES:

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NITED STATES ATENT FFICE.

FRANK RHIND, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR OF ONE-HALF TO THEBRIDGEPORT BRASS COMPANY, OF SAME PLACE.

LAMP.

SPECIFICATION forming part of Letters Patent No. 642,528, dated January30, 1900.

Application filed September 2,1899. Serial No. 729,307. (No model.)

To ctZZ whom it may concern:

Be it known that I, FRANK RHIND, a citizen of the United States,residing at Bridgeport, Connecticut, have invented a new and usefulImprovement in Lamps, of which the following is a specification.

My invention relates, chiefly, to lanterns such as are used on cycles orother vehicles for the consumption of acetylene or othergas. It isintended to render such lamps at once more simple and more e'flicient.

In the accompanying drawings, Figure I is a side elevation, partlybroken away, of a cycle-lamp embodying my invention. Figs. II and IIIare similar views showing modifications. Fig. IV is a top view of alamp, showing another part of my invention.

1 designates a lamp-body; 2, a gastube; 3, a burner; 4, a reflector,which may be provided with recess 41; 5, a wind-guard having centralaperture 51 and perforations 52; 6, Fig. IV, a valve; 7, a jam-nut.

In the example of my invention illustrated in Fig. I of the drawings thelamp-body 1 may be of any desired form. The upper end of the gas-tube 2is formed to carry a horizontally-disposed burner 3. A reflector 4(shown as a segment of a sphere) is also mounted upon the end of thegas-tube 2. IVithin the reflector 4 and surrounding the burnertip 3 is awind-guard 5, having an axial aperture 51 and lateral perforations 52.

The operation of my device will be readily understood from an inspectionof the drawings. It is clear that gas generated in the body 1 andpassing out through the burnertip 3 may be lighted and that the lightwill be thrown forward by the concave reflector 4. It has been found byexperiment with lamps of this general type that a wind on the beami. a,one inclined, say, forty to fifty degrees from a head-wind-willfrequently extinguish the flame. I therefore provide a wind-guard, shownas a thimble 5, having an axial aperture 51 for the passage of the flameand lateral perforations 52 for the admission of air. This wind-guard ispreferably made to screw onto the end of the gas-tube 2 and mayserve, inconnection with the jam-nut 7,to hold the reflector 4 in position. Ihave found in practice that this thimble serves to protect the flamefrom extinguishment even in a very strong wind.

In Fig. II of the drawings I have shown the reflector 4 as offrusto-conical shape and as having a rearward extension 41, of reduceddiameter, in which the thimble 5'is placed. This shape is advantageousas lessening the possibility of accident from the flame projectingbeyond the open mouth of the reflector and as concentrating the lightupon a longer narrower path.

In Fig. III the wind-guard 5 is shown as consisting of a part of therear wall of the refiector 4, perforate at 51 and 52, as shown, and ofthe side walls of a rearward extension or recess 41, which is in thiscase formed of a separate piece of metal and secured, as by riveting, tothe reflector 4. It is obvious that the operation of the device is nothereby changed.

The object of the present invention is to increase the relativeefficiency of the lamp by substituting a small single-tip burner for thelarge double-tip burners used in the better grade of acetylenecycle-lamps and projecting 'a greater percentage of the light upon theroad. To further increase this efliciency, I provide the two reflectors4 and burners 3. (Shown in Fig. IV of the drawings.) In operation one ofthese burners may be used in fairly-lighted streets or roads and bothwhen a greater illumination is required. For this reason I provide oneof the branches of the gas-tube 2 with a valve or cook 7.

I have filed an application for patent concurrent with this in whichisshown a reflector provided with a rearwardly-extending recess orportion of reduced diameter. It is clear that I do not herein claim sucha reflector except in combination with a wind-guard, as specified. Ihave also filed an application concurrent with this in which is shown ahorizontally-disposed gas-burner near the rear end of an open reflectorand a wind-guard consisting of a strip of perforate metal or itsequivalent at the free or open end of the refiector.

My present invention relates, so far as the protection of the flame fromthe wind is concerned, to such an arrangement only as provides an openconcave reflector, a burner-tip at the rear end of said reflector whoseaxis is substantially coincident or at least parallel with that of thereflector, and a wind-guard within said reflector covering or protectingthe root of the flame emitted from said burnertip, said Wind-guard beingreduced in diameter at its free end or provided with an exitaperture forthe flame substantially smaller than the inner diameter of the body ofsaid guard.

I do not consider myself limited to the particular forms of my deviceshown, as many mechanical alterations may be made therein withoutdeparting from my invention.

What I claim is 1. In combination an open concave reflector whose axisis substantially horizontal, a gas-burner tip at or near the rear end ofsaid reflector the axis of said tip being also substantially horizontaland a wind-guard within said reflector and adapted to protect the rootof the flame issuing from said burner-tip, the exit-apertu re for theflame through said guard being of substantially less diameter than thebody portion of said guard, substantially as described. I

2. In combination an open concave reflector, a gas-burner tip at or nearthe rear end of said reflector and whose axis is substantiallycoincident with that of said reflector and a wind-guard within saidreflector and adapted to protect the root of the flame issuing from saidburnerti p, the exit'aperture for the flame through said guard being ofsubstantially less diameter than the body portion of said guard,substantially as described.

3. In combination an open concave reflector, a gas-burner tip at or nearthe rear end of said reflector and adapted to project a flamesubstantially in the axis thereof and a windguard within said reflectorand adapted to protect the root of such flame, the exit-aperture for theflame through said guard being of substantially less diameter than thebody portion of said guard, substantially as described.

4. In combination an open concave reflector, a gas-burner tip at or nearthe rear end of said reflector and adapted to project a flamesubstantially in the axis thereof, and a windguard within said reflectorsurrounding and covering said burner-tip and reduced in di-v ameter atits free end so that the exit-aperture for such flame is ofsubstantially less diameter than the body of said wind-guard,substantially as described.

5. In combination an open concave reflector, a gas-burner tip at or nearthe rear end of said reflector and adapted to project a flamesubstantially in the axis thereof and a windguard within said reflectorsurrounding and covering said burner-tip perforated for the admission ofair and having at its free end an exit-aperture for the flame of adiameter less than that of the body of said wind-guard, substantially asdescribed.

6. In combination an open concave reflector, a gas-burner tip at or nearthe rear end of said reflector and adapted to project a flamesubstantiallyin the axis thereof and a domeshaped wind-guard within saidreflector surrounding said burner-tip and provided with a plurality ofperforations through its side walls for the admission of air and anaxial exit-aperture in its free end for the flame, substantially asdescribed.

7. In combination an open concave reflector, a gas-burner tip at or nearthe rear end of said reflector and adapted to project a flamesubstantially in the axis thereof and a detachable wind-guard withinsaid reflector and adapted to protect the root of such flame, theexit-aperture for the flame through said guard being of substantiallyless diameter than the body portion of said guard, substantially asdescribed.

8. In combination an open concave reflector provided with arearWardly-extending recess or portion of reduced diameter, a gasburnertip within said recess the axis of said burner and of said recess beingsubstantially coincident and a wind-guard within said reflector andadapted to protect the root of the flame issuing from said burner-tip,substantially as described.

9. In combination a lamp-body, a plurality of burner-tips operativelyconnected with said body and aplurality of reflector portions eachinclosing one of said burner-tips, the axes of said reflectors beingsubstantially parallel so as throw the emitted light from both flames insubstantially the same direction.

10. In combination a lamp-body, a p1urality of gas-burner tipsoperatively connected with said body, a plurality of reflector portionseach inclosing one of said burner-tips and means for cutting oif thesupply of gas from one of said tips, the axes of said reflectors beingsubstantially parallel so as throw the emitted light from both flames insubstantially the same direction.

FRANK RI-IIN D.

Witnesses:

Gno. L. Ooornn, NETTIE S. WELLS.

